justabirdwatcher
Well-known member
I have a question for the forum experts -
I've noticed on many occasions now that the eye relief seems to be just a hair too much on my bins for bright light conditions, and I'll get the dreaded "kidney bean" if I pull the binoculars in tight against my eyes.
But as the light fades (shadow, overcast, twilight) I don't notice the kidney bean effect anymore to the point that when it's really getting dark, I can pull the bins as tight into my eyes as I want with nothing but a nice round full view.
Anyone care to guess what's happening here?
I've tested this many times and always get the same result. The more light I have the more the eye relief seems to be too much for the eyecups, and vice-versa.
I've noticed on many occasions now that the eye relief seems to be just a hair too much on my bins for bright light conditions, and I'll get the dreaded "kidney bean" if I pull the binoculars in tight against my eyes.
But as the light fades (shadow, overcast, twilight) I don't notice the kidney bean effect anymore to the point that when it's really getting dark, I can pull the bins as tight into my eyes as I want with nothing but a nice round full view.
Anyone care to guess what's happening here?
I've tested this many times and always get the same result. The more light I have the more the eye relief seems to be too much for the eyecups, and vice-versa.